How to Determine Which Replacement Wheel Studs Are Needed

Question

Question:

I have a snowmobile trailer and need to wheel studs and lug nuts and not sure of the size. They have a 5 on 4-1/2inch Bolt Pattern. Trailer weight capacity is probably 2000-2500 lbs the trailer is a couple hours away at the moment and hoping to get parts to fix it without a separate trip to find out sizes.

asked by: Drew M

0

Expert Reply:

I couldn't be 100% positive about which wheel studs you'd need without seeing the trailer and being able to measure. I just don't have enough information.

This bein said, by virtue of the trailer having a 5 on 4-1/2 inch wheel bolt pattern, you likely have a 3000-3500 lb axle which would typically use a 1/2 inch wheel stud with 20 threads per inch. In order to recommend the correct replacement, I'll need to know the thread diameter, the length of the stud, the length of the splined portion of the stud, the base length and the diameter of the splined portion.

Unfortunately, really the only way to get this info would be to drive one of the wheel studs out and measure it with a digital caliper like # PTW80157.

I've provided a diagram showing the relevant dimensions I need. The dimensions shown are for the
# 7-122 wheel stud.

Barring this, if you have the manufacturer name, model number of the trailer and the VIN and you could provide me with that information, I might be able to determine which hubs were used on the trailer. I wouldn't be able to determine which wheel studs were used, but you could swap out the hubs which would provide new wheel studs.

expert reply by: Mike L

0

Wheel Stud Dimensions
(click to enlarge)

Answer 1

I wasn't able to find your specific part number hub but if you have a 5,200 lb hub with a 6 on 5-1/2 inch bolt pattern you are going to need a 1/2 inch drive in stud. If your existing drive in studs are 1-13/16 inches long (measurement B in…

view full answer...

Answer 2

It is possible to change your studs from 1/2" to 9/16" if you use drive-in studs and the the length and knurl diameter of the studs is the same, such as the 0.685" knurl diameter of the Kodiak Wheel Bolt - 9/16"…

view full answer...

Answer 3

Thanks for the Picture. What you have there is a 6 on 5-1/2" hub for a 3,500 lb axle. We do have a replacement hub for your Truryde RVD-H-65535 hub. The correct replacement will be part #AKHD-655-35-EZ-K. This will include the hub,…

view full answer...

Answer 4

The hub you describe is a 3500 lb 10 inch hub/drum with a 6 on 5-1/2 inch bolt pattern which uses an L44649 outer and an L68149 inner wheel bearing and a 58846 grease seal. For a replacement, I'd recommend the #AKHD-655-35-EZ-K hub/drum.…

view full answer...

Answer 5

For a 1/2-20 sized wheel stud you will want #25-53 for screw in or #K12WB2 for drive in.

view full answer...

Answer 6

In order to find the correct wheel studs for your trailer you'll need to measure your existing since there is no way to look this up with the make and model of the trailer. The Trailer Hub Wheel Stud part #7-122 for example measures…

view full answer...

Answer 7

We don't have a database that tells us what the stud size is on that hub, but I was able to do a little bit of research and find some reports that say that your 1/2" thread by 2" long stud seems to be accurate. For that size…

view full answer...

Answer 8

I checked with Dexter and was able to verify the correct studs for the Dexter Trailer Hub and Drum 42656. Per Dexter the correct replacement is the 2" long stud, which is the following part number: - Trailer Hub Wheel Stud - Drive In -…

view full answer...

Answer 9

Trailer wheel lug nuts that are 1/2-inch inside diameter typically have a 20-TPI thread pitch (20 threads per inch). Most lug nuts also use a 60-degree-coned profile like #CE11051, but a 90-degree like #STN569 is also available for 9/16-inch studs.…

view full answer...

Answer 10

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 11

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are…

view full answer...

Answer 12

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

view full answer...